Motor operating attachment for liquid sprayers



March 25, 1930. F. F. NIELSEN ET AL 1,751,79

MOTOR OPERATING ATTACHMENT FOR LIQUID SPRAYERS 7 Filed July '7, 1927 2 Sheets-Sheet 1 Atmrmgy March 25, 1930. F. F. NIELSEN ET AL 1,751,709

MOTOR OPERATING ATTACHMENT FOR LIQUID SPRAYERS Filed July 7, 1927 2 Sheets-Sheet 2 Atto rn e] Patented Mar. 25, 1930' UNITED STATES PATENT; OFFICE FBANTZ I. NIELSEN, REA. H. NIELSEN, AND JAMES B. NIELSEN, OI AI'TON, WYOMING moron ornmrme arracnuanr r'oa mourn srmimns Application filed July 7, 1927. Serial No. 204,047. a

This'invention relates to liquid spraying apparatus and has for its principal object to provide means for operatively attaching the sprayer to an internal combustion engine in a manner to utilize the compression of the cylinders thereof whereby to supply compressed air to a liquid spray tank for forciblydischar ing the liquid therefrom.

Another object is to interpose a plug between one of the intake ports of an internal combustion engine and the intake manifold connected therewith for the Purpose of isolating one or more cylinders 0 the engine from the fuel supply whereby to form dead cylinders thereof and to attach compressed air generatin means for the purpose heretofore described.

A further object is to provide an apparatus of this character adapted to be installed as a part of an automobile and operated by the engine thereof for the purpose of providing a pressure actuated liquid sprayer readil adapted for use in spraying practically al forms of liquid, such as calcimine, ainfis, disinfectants and for other purposes in which a liquid sprayer may be used, which is simple and practical in construction efiicient and reliable in performance, which may be easily and quickly installed for operation by the engine of a motor driven vehicle, relatively inexpensive to manufacture and otherwise well adapted for the purposes for which the same is intended.

Other objects and advantages of the invention will become apparent from the following description when taken in connection with the accompanying drawin s.

In the accompan ing rawings forming part of this application and wherein like numerals indicate corresponding parts Figure 1 is an assembled view of the apparatus showing the same operatively arranged in osition upon an engine.

igure 2 is a vertical sectional view through one of the check valves taken along the line 2--2 of Figure 1.

Figure 3 is a vertical sectional view of the plug for the intake manifoldtaken along a line 33 of Figure 1, and

Figure 4 is a sectional view taken along the line of Figure 1 showing the use of a cork facing gasket at one end of the manifold to compensate for the use of the plug at theupper end thereof.

Referring now to the drawings wherein for the purpose of illustration'we have disclosed the preferred embodiment of our invention we provide a liquid spray tank 5 havm a spray hose 6 and nozzle 7 extending there rom, the inner end of the spray hose being arranged in a position close to the bottom of the tank as shown in Figure 1 in order to permit the discharge of practically all the liquid therefrom in a manner to be hereinafter explained.

A filler cap 8 is arranged in the upper end of the tank and likewise the compressed air page 9 through which compressed air may be e to the upper area of the tank whereby to force the liquid therefrom out through the spray hose and nozzle. The compressed air pipe 9 is connected with one or more check valves indicated generally at 10 in Figure 1 of the drawing, saidvalves being seated in the spark plug opening in the head of an internal combustion engme 11, whereby to utilize the compression from the engine cylinder communicating with such opening'so as to force compressed air through the pi e 9.

In order to isolate such cylinders o the engine havin the check valve attached thereto from t e fuel feed line of the engine so as to prevent the intake of fuel therein which would naturally be wasted, a plu 12 is interposed between the intake mamfol 13 of the engine and one of the intake ports 14 thereof leading to said cylinders, said plug comprising a plate adapted to seat over the outlet end of the intake manifold so as to entirely close the same, said plate having flanges 15 arranged at right angles thereto and extending around three sides of the plate with the remaining side open whereby to space the plate outwardl from the intake port 14 to permit air'to sucked through the open end of the plate as indicated by the arrows in Fi ure 1, for entering the engine 0 linders to be compressed by the pistons t ereon and forced through the check valves 10 to the tank 5.

A suitable gasket 16 is fitted partly about the sides of the plug 12 in order to evenly space the upper and lower edges of the. intake manifold from theengine, the same b0lts,17 used for normally attaching the intake manifold to the engine being likewise used for attaching the same as the plug is interposed therebetween. The remaining cylinders of the engine unaffected by the attachment are adapted for operation in the usual manner and at the other intake port for the engine leading to said other cylinders is interposed a similar gasket 18 so as to evenly space both ends of the intake manifold 13 from the engine block. The feed line for the fuel to the cylinders not having the check valves attached thereto is therefore uninterrupted permitting the operation of such cylinders in a normal manner.

The check valve construction comprises a cylinder member 19, threaded at each end, its lower end having a plug 20 attached thereto provided with a hollow bore communicating with the cylinder 19, said plug being threaded at its lower end for threaded insertion in the spark plug-opening of the engine head. A valve chamber 21 is connected at the upper end of the cylinder member having an opening extending through the upper end of the chamber for receiving a cou-' pling for attaching the compressed air pipe '9 thereto. The upper end of the cylinder 19 is formed into a valve seat 21 having a valve 22 arranged thereon to which is attached a valve stem 23 extending downwardly within the cylinder 19, the valve stem 23 carrying a spring 24 seated on a washer 25 carried on the lower end of the stem and secured thereon by a cotter pin 26 or the like, the upper edge of said spring engaging a valve guide 27 arranged in the upper end of the cylinder, said guide having a plurality of apertures 28 therein permitting the air from the cylinder to enter the valve chamber during the operation of the valve. As will be clearly understood from an inspection of Figure 2 of the drawing the check valve operates to permit the air compressed in the engine cylinder to be forced therethrough into the spray tank 5, but on the suction stroke of the piston in the cylinder of the engine the check valve closes to prevent the return of the air from the tank 5 to the engine cylinders.

' In this manner an adequate supply of compressed is forced into the tank 5 operating to force the liquid from the tank to the spray nozzle 7, the amount of pressure generated in the tank being regulated by the speed at which the motor is operated.

It is obvious that the invention is susceptible to various changes and modifications without departing from the spirit thereof or the scope of the appended claims and we accordingly claim all such forms of the device to which we are entitled.

Having thus described the invention, what we claim as new and desire to secure by Letters Patent is 1. An air compressing attachment for gas engines comprising a tank, a check valve arranged in the spark plug openin of the engine, a feed pipe connecting sai tank with the check valve and means for isolating the cylinder of the engine having the check valve attached thereto from the fuel feed line of the engine, said means comprising a plate positioned in the fuel feed line formlng a 010- sure therefor and adapted to provide atmospheric communication for the isolated cylinder.

2. In an air compressing attachment for gas engines, a compressed air tank, a check valve arranged in the spark plug opening of one or more of the engine cylinders, an air pipe connecting the tank with said check valve, plate member interposed between the intake manifold and the cylinder of the engine provided with said check valve, formlng a closure for the intake manifold, and means for spacing the plate outwardly of the cylinder wall whereby to provide atmospheric communication for the intake port of the cylinder.

3. In a liquid spray attachment for gas engines comprising a spray tank, a compressed air pipe connected therewith, a check valve adapted to be inserted in the spark plug opening of the-engine connected with said air pipe and means for isolating the cylinder of the engine provided with said check valve from the fuel feed line of the engine comprising a plate member arranged to close the intake manifold communicating with said cylinder, and spacing members formed onsaid plate whereby to space the same outwardly from the intake port of said cylinder for forming atmospheric communication for the same.

4. In a liquid spray attachment for gas engines comprising a tank having a spray nozzle attached thereto, and a compressed air pipe connected with said tank, check valves arranged in one or more of the spark plug openings of the cylinders of the engine and connected with said air ipe, and means for isolating the cylinders of the engine provided with said check valve from the fuel feed line of the engine comprising a plate adapted to be fitted over the outlet of one end of the intake manifold of the engine normally feeding such isolated cylinders and flanges formed at right vangles on the edges of said plate whereby to space the plate outwardly from the intake port communicating tached to said pipe and adapted to be threadedly inserted in the spark plug opening of a cylinder of the engine, said valve bein arranged to open b the compression of the piston in the cylin er and to close by the suction thereof, and means for isolatin said cylinder from the fuel feed line of t e engine comprising a plate interposed between the outlet at one end of the intake manifold of the engine and the fuel intake port of the cylinder and flanges formed on the plate extending outwardly from said manifold whereby to space the plate from the engine to admit air therebetween into said cylinder.

In testimony whereof we afiix our signatures.

FRANTZ F. NIELSEN. REA H. NIELSEN. JAMES R. NIELSEN. 

